APA (7 वां संस्करण) प्रशस्ति पत्र

(1989). Pedal Cars and Toys, Teddy Bears and Dolls, Toys, Trains and Soldiers: Monday 22ND May 1989 and Friday 26TH May 1989.

शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र

Pedal Cars and Toys, Teddy Bears and Dolls, Toys, Trains and Soldiers: Monday 22ND May 1989 and Friday 26TH May 1989. Billingshurst, 1989.

एमएलए (8वां संस्करण) प्रशस्ति पत्र

Pedal Cars and Toys, Teddy Bears and Dolls, Toys, Trains and Soldiers: Monday 22ND May 1989 and Friday 26TH May 1989. 1989.